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REPAIR PARTS:
ST/12-GARDEN TRACTOR
MODEL
NO.
917.25930
CRAFTSMAN 4-CYCLE ENGINE
Ref.
No.
1
2
2A
4
5
5
6
6
7
8
9
9
10
11
12
13
14
14
14
14
14
15
15
15
15
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
32
33
Part
No.
662012
33042
27652
31950
31940
31941
31942
31943
650592
31944
31945
31946
20810
33390A
29783
31931
32238
32239
32240
32621
32622
32241
32242
32243
32625
32626
31919
33093A
32077
26073
28264
32150
-~
31939
32685
33893
33590
33984
*31956
32426
650588
30564
31964
Part
Name
Complete
Engine
Cylinder
Assy.
(Incl.
Nos.
2A,
4
&
47)
Pin,
Dowel
Seal,
Oil
Valve, Intake
(Standard)
Valve, Intake
(1/32"
oversize)
(Incl. No. 9)
Valve,
Exhaust
(Standard)
Valve,
Exhaust
(1/32" over-
size)
(Incl. No.9)
Key,
Flywheel
Spring,
Valve
Cap,
Lower valve spring
(Std:)
Cap, Lower
valve
spring (1/32"
oversize)
Pin,
Valve
spring retaining
Crankshaft Assy. (Incl. Nos.
12,
13,
78
&
79)
Pin, Crankshaft
gear
Gear, Crankshaft
Piston
&
Pin
Assy.
(Incl.
2
of
No. 16)
(Standard)
Piston
&
Pin Assy. (Incl. 2
of
No. 16)
(.010
oversize)
Piston
&
Pin
Assy.
(Incl. 2 of
No.
16) (.020 oversize)
Piston
&
Pin
Assy.
(Incl.
2 of
No.
16)
(.030
oversize)
Piston
&
Pin
Assy
'
(Incl.
2
of
No.
16) (.040 oversize)
Ring Set,
Piston
(Standard)
Ring Set,
Piston (.010
oversize)
Ring Set, Piston
(
.020 oversize)
Ring
Set, Piston
(.030 oversize)
Ring Set, Piston
(.040 oversize)
Ring, Piston
pin retaining
Rod
Assy .,
Connecting (Incl.
Nos. 18,
19
&
20)
Bolt, Connecting
rod
Washer, Connecting rod
Ref.
No.
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
53
54
55
56
57
58
59
60
67
68
70
71
72
73
74
75
Nut,
LockJ
_
S/16-24
_ _
Camshaft
(Mech.
Compression' ,
Release)
--
Lifter, Valve
Cover,
Cylinder
(Incl.
Nos. 4,
28, 34
&
43
)
Tube, Oil
filler
"0"
Ring
Dipstick
Assy
.,
Oil (Incl.
No.
25)
Gasket, Cylinder cover
Spacer,
Governor rod
Screw,
Hex
hd.
Sems,
1/4-20
x
2
Screw,
Hex
hd. cap Sems,
1/4-20
X
1
Clamp, Governor lever
76
77
78
79
81
82
82A
83
.
25.
I
MODEL
NUMBER
:
143.662012
Part
No.
29193
31963
650518
650544
7975
31965
30312
31967
31968
32425
31948
29193
31947
31930
*32246A
33034
650711
650714
33636
33035
6
50691
650781
27793
28942
650128
31976
30688
650690
28537
26460
30962
32579
610118
650561
650124
610750
31932
31928
*31971
*31
972
32031
32577
Part Name
Ring, Retaining
Lever,
Governor
adjusting
Lockwasher,
No.
10 E.T.
Screw,
Fil. flex
hd.
self-locking,
10-24
X
7/
8
Nut,
Square, 10-24
Plate,
Governor
spring
Screw, Hex
slotted
washer
hd.,
Sems,
10-32 x 1/2
Spring,
Governor
Link,
Governor
Rod
Assy.,
Governor
Spool, Governor
Ring,
Retaining
Gear
Assy., Governor
Shaft, Mechanical
governor
Gasket, Cylinder head
Head,
Cylinder
Screw,
Hex
hd.
cap,
5/16-18
x
1-5/8
;
'
Screw,
Special
hex
hd.
cap,
)'
5/16-18
X
1-5/
8
~
Plug, Spark
•
'
Cover,
Cylinder head
Washer,
Flat
Screw, Hex
hd.
cap,
Sems,
5/16-18
X
11/16
Clip, Conduit
Screw,
Hex
slotted
hd. Sems,
1.
0 -32
X
3/8
Screw,
Fil. slotted hd.
Sems,
10-24
X
l/2
Extension,
Bfower housing
Screw,
Hex
hd.
cap, Sems,
1/4-20
X
1/2
,
1
Washer, Belleville
Washer, Flat
Clamp, Fuel
line
Line,
Fuel
Baffle, Blower housing
Cover,
Spark
plug
Screw, Phil.
hex
hd.
Sems,
1/4-20
X
5/8
Nut,
Hex
10-32
Grommet, Lead
wire
Bearing, Tapered roller
Cup, Bearing
Gasket, Shim
(.004/.005
thick,
see note 1)
Gasket,
Shim (.005/.007
thick,
see note 1)
Spacer, Steel
(.010
thick, see
note
1)
Cover,
Cy~inder
(See
note 1)
*Indicates
Parts Included
in
Gasket
Set,
Ref. No. 169.
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